LTM230HT09 データシートの表示（PDF） - Samsung

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LTM230HT09

SAMSUNG TFT-LCD PRODUCT INFORMATION

Samsung 

Global LCD Panel Exchange Center

www.panelook.com

PRODUCT INFORMATION

Note (9) Color Grayscale Linearity

a. Test image : 100% full white pattern with a test pattern as below

b. Test pattern : Squares, 40mm by 40mm in size, filled with 255, 225, 195, 165, 135 and

105 grays steps should be arranged at the centerྜྷ of the screen.

c. Test method

-1st gray step : move a square of 255 gray level should be moved into the center of the

screen and measure luminance and u’ and v’ coordinates.

- Next gray step : Move a 225 gray square into the center and measure both

luminance and coordinates, too.

d. Test evaluation

'u' v' = (u' A - u' B)2 + (v' A - v' B)2

Where A, B : 2 gray levels found to have the largest color differences between them

i.e. get the largest ǻu’ and ǻv’ of each 6 pair of u’ and v’ and calculate the ǻu’v’.

MODEL

LTM230HT09

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